Python二维数据分析

一.numpy二维数组

1.声明

 1 import numpy as np
 2 
 3 #每一个[]代表一行
 4 ridership = np.array([
 5     [   0,    0,    2,    5,    0],
 6     [1478, 3877, 3674, 2328, 2539],
 7     [1613, 4088, 3991, 6461, 2691],
 8     [1560, 3392, 3826, 4787, 2613],
 9     [1608, 4802, 3932, 4477, 2705],
10     [1576, 3933, 3909, 4979, 2685],
11     [  95,  229,  255,  496,  201],
12     [   2,    0,    1,   27,    0],
13     [1438, 3785, 3589, 4174, 2215],
14     [1342, 4043, 4009, 4665, 3033]
15 ])

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